Cheap Flights from San Francisco (SFO) to London (LHR) from HK$2,443~

View HK$2,443 flight on Tue, 17 Mar 2026Opens in a new window

Popular airlines from San Francisco Intl. Airport (SFO) to Heathrow Airport (LHR)

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Find Cheap Flights from San Francisco (SFO) to London (LHR)

Prices were available within the past 7 days and start at HK$2,443 for one-way flights and HK$4,034 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, 18 Aug - Tue, 30 Sep
SFO
San Francisco
LHR
London
HK$4,034 Return, found 5 days ago
HK$4,034
Return
found 5 days ago
Select Delta flight, departing Mon, 18 Aug from San Francisco to London, returning Tue, 30 Sep, priced at HK$4,034 found 5 days ago
Delta
Sun, 17 Aug - Tue, 2 Sep
SFO
San Francisco
LHR
London
HK$4,046 Return, found 3 days ago
HK$4,046
Return
found 3 days ago
Select Delta flight, departing Sun, 17 Aug from San Francisco to London, returning Tue, 2 Sep, priced at HK$4,046 found 3 days ago
Virgin Atlantic
Mon, 18 Aug - Tue, 30 Sep
SFO
San Francisco
LHR
London
HK$4,078 Return, found 5 days ago
HK$4,078
Return
found 5 days ago
Select Virgin Atlantic flight, departing Mon, 18 Aug from San Francisco to London, returning Tue, 30 Sep, priced at HK$4,078 found 5 days ago
Delta
Sun, 17 Aug - Tue, 2 Sep
SFO
San Francisco
LHR
London
HK$4,090 Return, found 3 days ago
HK$4,090
Return
found 3 days ago
Select Delta flight, departing Sun, 17 Aug from San Francisco to London, returning Tue, 2 Sep, priced at HK$4,090 found 3 days ago
Delta
Mon, 18 Aug - Tue, 30 Sep
SFO
San Francisco
LHR
London
HK$4,227 Return, found 5 days ago
HK$4,227
Return
found 5 days ago
Select Delta flight, departing Mon, 18 Aug from San Francisco to London, returning Tue, 30 Sep, priced at HK$4,227 found 5 days ago
Air France
Mon, 18 Aug - Tue, 30 Sep
SFO
San Francisco
LHR
London
HK$4,530 Return, found 5 days ago
HK$4,530
Return
found 5 days ago
Select Air France flight, departing Mon, 18 Aug from San Francisco to London, returning Tue, 30 Sep, priced at HK$4,530 found 5 days ago
Scandinavian Airlines
Mon, 13 Oct - Mon, 3 Nov
SFO
San Francisco
LHR
London
HK$4,751 Return, found 2 days ago
HK$4,751
Return
found 2 days ago
Select Scandinavian Airlines flight, departing Mon, 13 Oct from San Francisco to London, returning Mon, 3 Nov, priced at HK$4,751 found 2 days ago
Virgin Atlantic
Sat, 11 Oct - Sat, 18 Oct
SFO
San Francisco
LHR
London
HK$4,868 Return, found 5 days ago
HK$4,868
Return
found 5 days ago
Select Virgin Atlantic flight, departing Sat, 11 Oct from San Francisco to London, returning Sat, 18 Oct, priced at HK$4,868 found 5 days ago
British Airways
Mon, 13 Oct - Mon, 3 Nov
SFO
San Francisco
LHR
London
HK$4,888 Return, found 2 days ago
HK$4,888
Return
found 2 days ago
Select British Airways flight, departing Mon, 13 Oct from San Francisco to London, returning Mon, 3 Nov, priced at HK$4,888 found 2 days ago
United
Sun, 17 Aug - Tue, 2 Sep
SFO
San Francisco
LHR
London
HK$4,899 Return, found 3 days ago
HK$4,899
Return
found 3 days ago
Select United flight, departing Sun, 17 Aug from San Francisco to London, returning Tue, 2 Sep, priced at HK$4,899 found 3 days ago

Find the cheapest month to fly from San Francisco (SFO) to London (LHR)

January is typically the cheapest month to fly

From HK$3,509 - HK$7,655 per traveller.

Graph displaying average flight prices per month

San Francisco to London route information
Origin airport
San Francisco Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, Finnair, Iberia, Lufthansa, Scandinavian Airlines, Singapore Airlines, Swiss International Air Lines, Turkish Airlines, United, Virgin Atlantic, WestJet
Return price
HK$4,034
Distance
8567 km
Average flight time
18 hours 22 mins

Flights from San Francisco to London

Book cheap flights from San Francisco (SFO) to London (LHR) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from San Francisco (SFO) to London (LHR) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your San Francisco (SFO) to London (LHR) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your London flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in London and things to do in London for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to London more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to London is HK$2,443 now!

 

Frequently asked questions

How much is a flight from San Francisco Intl. Airport (SFO) to Heathrow Airport?
Round-trip tickets from San Francisco Intl. Airport (SFO) to London Heathrow start from HK$4,034. This is based on fares offered within the last 7 days on Expedia for flights departing within the next year — make your booking ASAP to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from San Francisco Intl. Airport (SFO) to LHR?
Most flights can be canceled online, but each air carrier has different terms and conditions. If you do have to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from SFO to London Heathrow that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for San Francisco Intl. Airport (SFO) to Heathrow Airport (LHR) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from SFO to LHR?
San Francisco to Hounslow is around 8,600 kilometers, so get ready to spend a while in the air. Don't forget to pack all the essentials, from your headphones to your hoodie. Take some snacks to munch on throughout your flight too.
Which airlines fly direct from SFO to London Heathrow?
A popular airline that flies from SFO to LHR is United Airlines (UA). It offers 60 flights a month. After some more options? Check out the airfares with British Airways (BA). This carrier offers 60 monthly flights between these airports.
Are San Francisco Airport to Heathrow Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from San Francisco Intl. Airport (SFO) to London Heathrow can be hit-or-miss. You may be able to score a great bargain, but you could also miss out completely! If you'd prefer to play it safe and start planning your trip early on, Expedia compares flight deals up to a year in advance. Just remember that not all airlines advertise their prices so far in advance. Our advice? Check back often as updates are made frequently.

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